Valve.



s. A. PLOUGH.

VALVE.

APPLICATION FILED JUNE 1o. 1905.

UNTTED STATES PATENT onirica.

Specification of Letters Patent.

Patented Sept. 11, 1906.

Application filed June l0, 1905. Serial No. 264,608.

To all whom t may concern,.-

Be it known that I, SETH ALBERT PLOUGH, a citizen of the United States, and a resident of Traverse City, in the county of Grand Traverse and State of Michigan, have invented a new and Improved Valve, of which the following is a full, clear, and exact description.

The object of the invention is to provide a new and improved valve arranged to shut ofl` the flow of fluid through the valve by the use of an emergency-valve whene ver the main plug breaks or becomes out of order and to allow of conveniently removing the broken main plug for repairs or for replacing it by a new one and to permit resetting of the emergency-valve after the repairs are made to again allow the use of the valve for its legitimate purpose.

The invention consists of novel features and 'parts and combinations of the same, which will be more fully described hereinafter and pointed out in the claims.

A practical embodiment of the invention is represented in the accompanying drawings, forming a part of this specication, in which similar characters of reference indicate corresponding parts in all the views.

Figure l is a longitudinal central section of the improvement. Fig. 2 is an end view of the same, parts being broken out. Fig. 3 is a perspective view of the emergency-valve. Fig. 4 is a like view of the gate-valve. Fig. 5 is a like view of the seat for the gatevalve; and Fig. 6 is a reduced longitudinal central section of the improvement, showing the emergency-valve controlling the flow of the Huid.

The body A of the valve is provided with the usual inlet A and the outlet A2, both eX- tending from a conical valve-seat A3, in which is mounted to turn an emergencyvalve B, having oppositely-disposed openings B and B2, adapted to register with the inlet A and the outlet A2 or to be moved out of register with the same. Normally the emergencyvalve B is in an acti ve position that is, its openings B and B2 register with the inlet and outlet A and A2, respectively. The emergency-valve B is locked in either of its two positions by a set-screw C, screwing in the body A against the emergency-valve B, as plainly indicated in Fig. 2.

The lower end of the emergency-valve B is provided with a threaded portion B3, on which screws a nut D against a washer E,

resting on the under side of the body A. Thus by screwing up the nut D the emergencyvalve B can be properly drawn into position in its conical valve-seat A3. The lower terminal B4 of the emergency-valve .B is preferably made polygonal to allow convenient application of a wrench or similar tool (see Fig. 6) to permit the operator to turn the emergencyvalve B from an active or open position, such as shown in Figs. l and 2, into an inactive or closed positionthat is, to move the openings B and B2 out of register with the inlet A and the outlet A2 to shut off the flow of the fluid through the valve.

Previous to turning the emergency-val ve B, as described, it is necessary to partly unscrew the set-screw C, and after the emergencyvalve B has been turned to the desired position the set-screw C is screwed up to securely hold the emergency-valve against turning.

On the upper end of the emergency-valve B screws a cap F and on the lower end of the body A screws a cap F, adapted tobe interchanged with the cap F for the purpose hereinafter more fully described. Within the said emergency-valve is fitted ainain valveplug G, having forked members G G2, provided with openings G3 G, adapted to register with the openings B and B2 in the einergency-valve B. The forked members G and G2 are adapted to be engaged by the tapering or split end H of a gate-valve H, contained within the emergency-valve B, and in the said gate-valve H screws the threaded end I of a stem I, extending loosely through the cap F and providedat its able handle I2 for turning the stem, so as to cause the threaded portion I to move the gate-valve H up or down in the emergencyvalve B, according to the direction in which the said handle I2 is turned. On the stern I is arranged a collar I3, seated in a seat B5, formed on the upper end of the emergencyvalve B, and the said collar I3 is held in place on the said seat by the cap F. By screwing the handle I2 in one direction the gate-valve H is moved downward, so as to engage its end H with the forked members G and G2 of the valve-plug G and close the openings G8 and G4 to shut ofi' the iow of the fluid through the valve. I/Vhen it is desired to open the valve, the handle I2 is turned in the opposite direction, so as to lift the gate-valve H and the end H thereof to uncover the openings G3 and G4, thereby again allowing the pasouter end with a suit- IOO IOS

. Patentsage of the fluid through the valve. In order to insure a firm seating of theI members of the split end Hl on the forked members G G2,

the terminals of the split members engage a wedge-shaped projection G5 on the plug G,

s wil be readily understood by reference to In case the main valve-plug G or the gatevalve H and parts connected therewith break or'become out of order and it is desired to repair' the same then the operator unscrews the cap F and the set-screw C and applies a wrench or other tool' on the polygonal portion l B'4 to give a quarter-turn to the emergen'cyvalve B, thus closing the emergency-valve by moving the openings B and B2 out of registerwith theinlet A and the outlet A2. When this has-been done, the set-screw C is screwed up to again lock the emergency-valve B in place. The operator now unscrews the cap Fand pulls out the gate-valve H and the plug G to repair the same or to replace the parts by new ones. In order to permit the use of the valve during the time the repairs are made, the cap F is screwed in position on the top of the emergency-valve B to close the upper' end' thereof (see Fig. 6) to allow of turning the emergency-valve B back into an open position topermit fluid to flow through the valve, although the gate-valve and the plug'G are removed for repairs. After the repairs are made the emergency-valve is again turned into a closed position, the cap F is removed, and then the repaired or renewed parts H and G are placed back into proper position in thev emergency-valve B. The operator now replaces the cap F, unscrews the set-screw C', and then turns the emergencyvalve B back to its normal active or open position-that is, to bring the openings B and B2 again in register with the inlet A and the outlet A2. When this has been done, the operator replaces the cap F and screws upy the set-screw C to ysecurely hold the emergencyvalve B locked in an active position to permit the proper flow of the fluid through the valve whenever the gate-valve H is moved into an open position.

Having' thus described my invention, I claim as new and desire to secure by Letters 1. A valve comprising a valve-body havin a' valve-seat, an inlet and outlet connected with the said valve-seat, an emergencyv'a'lve mounted to turn on the said valve-seat and adapted to be moved in or out of register with the said inlet and the said outlet, the said emergency-valve being open atone end forv the' reception or removal of the regular valve, and a cap for closing the said open end of the emergency-valve during the time the regular valve is removed.

2. A valve comprising a valve-body having a valve-seat and an inlet andi outlet con- \nected with the said valve-seat, an emergency-valve mounted to turn on the said valve-seat and provided with openings adapted to be moved in and out of register with the said inlet and the said outlet, a valve-plug in the emergency-valve, and-provided with 4openings adapted to register with the openings in said emergency-valve, and a gatevalve for'controlling the openings in the said valve-plug.

3. A valve comprising a valve-body having a valve-seat and an inlet and outlet con'- nected with the said valve-seat, an emergency-valve mounted to turn on the said valve-seat and adapted to be moved in and out of register with the said inlet and the said outlet, means forlocking the said emergency'- valv'e in open or closed position, a valve in the said emergency-valve and provided with a valve-plug, a gate-valve for engaging the said valve-plug, and means for' moving the' said gate-valve into an open or closed position relative to the said valve-plug` 4. A valve comprising a valve-body having a valve-seat and an inlet and outlet con-- n'ected with the said valve-seat, an emergency-valve mounted to turn on the said valve-seat and adapted to be move-d in and out of register with the said inlet and the said outlet, means for locking. the said emergencyvalve in an open or closed position, a valve in the said emergency-valve and provided with a valve-plug, a gate-valve forA engaging the said valve-plug, a stem screwing on the said gate-valve and provided with a collar seated on the said emergency-valve, and a cap on the said emergency-valve for holding the said collar on its seat.

5. The combination with a valve-body having a valve-seat and provided with an inlet and an outlet, of an emergency-valve mounted to turn on the said valve-seat and provided with openings adapted to be moved in and out of register with the said inlet and the said outlet, a valve-plug fitted within the said emergency-valve and having lforked" members provided with openings adapted toy register with the openings in the emergencyvalve, a gate-valve having its end shaped to fit between the forked members of the valveplug, and means for moving the gate-valve to close or uncover the openings in sai forked members.

In testimony whereof l have signed my name to this specification in the presence of two subscribing witnesses.

y SETH ALBERT PLOUGH.

Witnesses:

JACOB FURTsoH, WILLIAM W. SMITH.

IOO 

